diff --git a/pkgs/applications/kde/default.nix b/pkgs/applications/kde/default.nix
index 8e04700b83fd..fd990baa6faf 100644
--- a/pkgs/applications/kde/default.nix
+++ b/pkgs/applications/kde/default.nix
@@ -26,7 +26,7 @@ still shows most of the available features is in `./gwenview`.
 */
 
 {
-  lib, libsForQt5, fetchurl,
+  lib, config, libsForQt5, fetchurl,
 }:
 
 let
@@ -96,7 +96,6 @@ let
       incidenceeditor = callPackage ./incidenceeditor.nix {};
       itinerary = callPackage ./itinerary.nix {};
       juk = callPackage ./juk.nix {};
-      k3b = callPackage ./k3b.nix {};
       kaccounts-integration = callPackage ./kaccounts-integration.nix {};
       kaccounts-providers = callPackage ./kaccounts-providers.nix {};
       kaddressbook = callPackage ./kaddressbook.nix {};
@@ -264,6 +263,8 @@ let
       qmlkonsole = callPackage ./qmlkonsole.nix {};
       telly-skout = callPackage ./telly-skout.nix {};
       tokodon = callPackage ./tokodon.nix {};
+    } // lib.optionalAttrs config.allowAliases {
+      k3b = throw "libsForQt5.k3b has been dropped in favor of kdePackages.k3b";
     };
 
 in lib.makeScope libsForQt5.newScope packages
diff --git a/pkgs/applications/kde/k3b.nix b/pkgs/applications/kde/k3b.nix
deleted file mode 100644
index 643c5e80b10f..000000000000
--- a/pkgs/applications/kde/k3b.nix
+++ /dev/null
@@ -1,48 +0,0 @@
-{ mkDerivation, lib
-, extra-cmake-modules, kdoctools, makeWrapper, shared-mime-info
-, libkcddb, karchive, kcmutils, kfilemetadata, knewstuff, knotifyconfig, solid, kxmlgui
-, flac, lame, libmad, libmpcdec, libvorbis
-, libsamplerate, libsndfile, taglib
-, cdparanoia, cdrdao, cdrtools, dvdplusrwtools, libburn, libdvdcss, libdvdread, vcdimager
-, ffmpeg, libmusicbrainz3, normalize, sox, transcode, kinit
-}:
-
-mkDerivation {
-  pname = "k3b";
-  meta = with lib; {
-    homepage = "https://apps.kde.org/k3b/";
-    description = "Disk burning application";
-    mainProgram = "k3b";
-    license = with licenses; [ gpl2Plus ];
-    maintainers = with maintainers; [ sander ];
-    platforms = platforms.linux;
-  };
-  nativeBuildInputs = [ extra-cmake-modules kdoctools makeWrapper ];
-  buildInputs = [
-    # kde
-    libkcddb karchive kcmutils kfilemetadata knewstuff knotifyconfig solid kxmlgui
-    # formats
-    flac lame libmad libmpcdec libvorbis
-    # sound utilities
-    libsamplerate libsndfile taglib
-    # cd/dvd
-    cdparanoia libdvdcss libdvdread
-    # others
-    ffmpeg libmusicbrainz3 shared-mime-info
-  ];
-  propagatedUserEnvPkgs = [ (lib.getBin kinit) ];
-  postFixup =
-    let
-      binPath = lib.makeBinPath [
-        cdrdao cdrtools dvdplusrwtools libburn normalize sox transcode
-        vcdimager flac
-      ];
-      libraryPath = lib.makeLibraryPath [
-        cdparanoia
-      ];
-    in ''
-      wrapProgram "$out/bin/k3b"     \
-        --prefix PATH : "${binPath}" \
-        --prefix LD_LIBRARY_PATH : ${libraryPath}
-    '';
-}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a3aa1e178d9e..77010018b53b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -10767,7 +10767,7 @@ with pkgs;
     });
 
   libsForQt5 = (recurseIntoAttrs (import ./qt5-packages.nix {
-    inherit lib __splicedPackages makeScopeWithSplicing' generateSplicesForMkScope pkgsHostTarget;
+    inherit lib config __splicedPackages makeScopeWithSplicing' generateSplicesForMkScope pkgsHostTarget;
   })) // { __recurseIntoDerivationForReleaseJobs = true; };
 
   # plasma5Packages maps to the Qt5 packages set that is used to build the plasma5 desktop
diff --git a/pkgs/top-level/qt5-packages.nix b/pkgs/top-level/qt5-packages.nix
index c1ac5b0f52ee..a93ce68cdfb5 100644
--- a/pkgs/top-level/qt5-packages.nix
+++ b/pkgs/top-level/qt5-packages.nix
@@ -7,6 +7,7 @@
 
 
 { lib
+, config
 , __splicedPackages
 , makeScopeWithSplicing'
 , generateSplicesForMkScope
@@ -47,7 +48,7 @@ makeScopeWithSplicing' {
   kdeGear = let
     mkGear = import ../applications/kde;
     attrs = {
-      inherit libsForQt5;
+      inherit config libsForQt5;
       inherit (pkgs) lib fetchurl;
     };
   in (lib.makeOverridable mkGear attrs);